/*
 * jngc, Java utility classes by Nicholas Coltharp
 * Copyright (C) 2010 Nicholas Coltharp <ngc1@rice.edu>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package edu.rice.ngc1.util;

/**
 * Contains utility methods dealing with Java primitives.
 */
public final class Primitives {

    /**
     * Private constructor to prevent construction.
     */
    private Primitives() {}

    /**
     * Converts a {@code long} to an {@code int} without losing
     * information. The resulting number will probably not be equal to
     * the input; this method is generally for use in hash codes.
     * 
     * @param val
     *            the {@code long} to convert
     * @return an {@code int} which loses no information from
     *         {@code val}
     * @see HashCodeGenerator
     */
    public static int longToIntBits(long val) {
        return (int) (val ^ (val >>> 32));
    }
}
